Disclosed is a TSG-6-link module (LM) multimer, comprising: - a first polypeptide containing a TSG-6-LM linked directly or indirectly via a linker to a first multimerisation domain and - a second polypeptide containing a TSG-6-LM linked directly or indirectly via a linker to a second multimerisation domain, wherein: - the first and second multimerisation domains each comprise a sequence of amino acids, whereby the first and second polypeptides form a multimer and - the TSG-6-LM multimer has a binding affinity to hyaluronan (HA) with an association constant of at least 10^7 M^-1.
